22424656 has 40 divisors (see below), whose sum is σ = 46425600. Its totient is φ = 10469760.

The previous prime is 22424641. The next prime is 22424659. The reversal of 22424656 is 65642422.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22424659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13605 + ... + 15163.

It is an arithmetic number, because the mean of its divisors is an integer number (1160640).

Almost surely, 2^22424656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22424656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23212800).

22424656 is an abundant number, since it is smaller than the sum of its proper divisors (24000944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22424656 is a wasteful number, since it uses less digits than its factorization.

22424656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627 (or 1621 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 22424656 is about 4735.4678755114. The cubic root of 22424656 is about 281.9953388563.

The spelling of 22424656 in words is "twenty-two million, four hundred twenty-four thousand, six hundred fifty-six".